Request-transformer performance

Hi all,

Today I did an implementation using request-transformer and after the deployment, I need to perform a rollback since the overall performance of Kong was compromised.

this was the route configuration:

paths:
- /(?i)(ext/xpto)(/v1/api/search.*)

plugins:
- name: request-transformer
enabled: true
config:
replace:
uri: $(uri_captures[2])

this is the print screen of deploy:

This performance bahviour is expected?